Belt-replacing device.



J. COHN.

BELT REPLACING DEVICE.

APPLICATION FILED Nov. 11. 1918.

Patented Oct. 14, 1919.

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machines and the like.

l unirsi) STATES 1 PATENT onirica.

JACOB conn, on CLEVELAND, onro. i

To all whom t may concern:

`ofthe UnitedStates, and4 Va resident of Cleveland, county o f Cuyahoga, and State of Ohio, `have invented anew and useful Improvement in Belt-Replacing Devices, of

principle of theinventimibeing herein eX- plained,-and the best mode in vwhich have contemplated applying that principle so as to distinguish it from other. inventions.

The present invention relates to a .device for replacing belts upon pulleys.v It is used Amore particularly for replacing-the round belts such as are used to drive power sewing The device is simple and easy to operate and saves` time over the old method of replacing ,by hand. g-It also eliminates' thedanger .ofihaving the operator handle.y the .belts `and Aallows i the operator to stand. away from the machine 'fan enough `to prevent the clothingffrom catching in any of the moving parts. To the accomplishment ofthe foregoing and related ends, said: invention, then,.consi sts of the means hereinafter fully described and particularly pointed out in the claims.

' The annexed drawingand the vfollowing description set forthy in detail certain mechanism embodying the invention, suclrv disclosed means constituting, however, but one of variousgmechanical forms in which the principle of the invention may be used. Insaid annexed drawing:.--.k 5 Y Figure 1 is a perspective view showing.

my improved device in position to replace a belt; Fig. 2 is a section through the device and the rim of the pulley wheel showing the device engaging the belt; Fig. 3 is a section on the line '3-3, Fig. 2; and Fig. 4 is a side elevation of the device.

The device consists of a Ushaped membei' 1 having a handle 2 vextending through an aperture 3 in the top of the member, the handle being held in place by a pin 4.

There is a slot 5 in the member, the slot being slightly Wider than the belt 6 and being adapted to receive the same. Through an aperture 7 in one of the extending arms 8 of the member, a pin 9 is movably mounted. This pin has a rounded or cone-shaped end 10 which extends into the slot between the two arms and is adapted to retain'the belt in the upper portion of the slot.r As

best shown in Fig. 3, the pin is hollowed knutrir-ianrnnciiver DEvIoE,

' l spmi'catin of Letters Patent. Patenfed Oef, 14, 1919; V.limamation aiea'november 11,1918. 4semi Ne. aereas. i i

i12 which contacts the `outer sidezof the arm to limit the inward movement .of the pin. A spring 13 is mountedin; the hollowed out portion of the pin and the spring engages' the under side `of a clip 14 carried `by the Below the slot5, the arms are" vflatteiiedas v-at Vand the slot is increased'in width y forming shoulders 17 which areadapted to ride `the upper edges of the p ulley wheel rim, the flattenedv portions or ting loosely over the sides of-'the rim* and holding thedevice securely' upon the pulley wheel 2 with the' slot 5 alined with the belt the operators hand. The handle extends ,f-

igersv 16 fitdevice and heldin place by screws 15. which the following is a. ,spec1fication,f the outwardly vf-romthe member and then turns upwardlyand outwardly away from the member, the rest ofthe handle extending 'atan angle to thecenter line of theldevice yso thatthel operator can stand away .from

the pulley. lThe dro-p KVor upward bend in vthe handle allows the device to be passed Over and kWell aIOund-t11e-puuey Whe/elmo replace the belt.-

the driving pulley 22 and engages the fingers on the rim of the pulley until the device is in the position shown in Fig. 1. The device is then moved around Ythe pulley in the direction shown bythe arrow until lthe tension of the belt is sufficient to force *the pin outwardly and allowthe belt to lsnap into place in the groove in the pulley wheel. The upward bend in the handle allows the device to be moved around the wheel without the handle contacting the pulley shaft. If the pulley wheel 22 runs ina direction opposite to the arrow, the belt will be engaged by the device on the under side Vand moved around the wheel in the opposite direction. It will be seen that as `soon as the tension on the belt is greater than that of the spring which holds the pin in the slot, the pin `will be forced outwardly andk the belt will snap into the groove due to its tension.

danger of the clip gyvhioh holds thel two Aends of the fbelt togethergfiom"eatohing l'on the device yand eithen'br'eaki'ng the 'belt or jerking the devicro'm the operatoi"s"liand. This "eliminates" jthe" danger heretofore enl5 counteredof havingthis' elip'fopen', So'that it Willraftch `and'tear or A'outttheoperatons hand when ,the'belt is ireplaoed. The fdeviee is sii'nple and. easy toihanuiiaeture"and'fean readily bei used r by" anyone 'Without -are'ful training `and LWithout endangering'theffp- 'erator in any Way. u

'Otherl modes of applyingthe 'prineijole' of my' ilfvention may -be employedinstead'of the one explained, changebeingmade" asfre vided' the means' 'stated by 'any' of "they following claims orl Ythe "equivalent i of v`sli-ch stated "means be'emp'l'oyed! K y I" thereforef particularly"pint^but` 'and distin'otly'zlaim as my invention 1;"A belt 'replacing`v deviceomiisiiig" a niem'berhziijing a' slot; "belt retaining' means mointed" in S'a'id4 'member and`v extending into such slot; `ai`icl"iiiigers onfsaid iriembeA and forming"shoulders-therevitln' said,V ingers extending' beloW ""s'nchf'slot' and adapted to hold 'the'dev'ice"in'positionon a pulleyl Wheel to aline s'u'eli"s'lot"`in 'said'"men'iber yvitliithe groove in the pulley Wheel.

member" having'v extending arms between which the belt is held, means mounted in one of said arms for retaining the belt betyveeifsaidhiims, fingers extending from Vs aid arms and forming shoulders therewvith, said fingers being adapted to fit over s the p nlleywheel to aline the belt opening be` tween the arms with the grooves "inthepul- 'ley"wli`eel,and'a 'handle attached to said member. I

3. A belt replaing'devieef`oomprising a member 'having extending arms between vhi'oh" the belt is held,A a pin" resiliently mounted inA one "of l`said arms and extending tfovvaid `A'the (other to' retain 'the belt' :above saidlfp'in'; lingers extending from saidarms and forming"shoulders 'therewith said- 'fin- 'grs'lbeingadapted to extend over the pulley Wheel "tol maintain the device" in position thei"e n`i,j and a` handleattaehed to'said ineinber 1'afnd 'e'xte'nding vip'iv'arclb andtat :an angle 'to""the center line of' said member. 4L.' In a device for replaeingfbelts'bn pulley Wheels;v ZtheI Combination" bf'` a Imember having mvo 'extendii'igfarms` With a.' belt re` 'eiviiig'l'slot therebetWe'enf,g a pin h'aving a 'grounded end mounted injone voi: said 'arms and-partially closing such slot ,'4 resilient means for holding lsaicl'pin in' such dosing fposition; fingers Vextending froml said arms land 'leaving shoulders "adapted to ride upon fthe' pulley Wheel,v said fingers being adapted to extend over thesides oi the pulleyy 'Wheel rim talin'esuchislot with the groove in the pull'ey Wheel, and yhandle attaohed 'tolsuoh member and' extending' upwardly andy then outwardly ytherefrom at angle to the'feeniterrline" of theinemben M '.Sign'ed -by` me, `thisSth day of" Nove'ember` 1918.

*'JAooB1- ooHN. 

